Vehicle thermal management system using two-port type integrated thermal management valve and cooling circuit control method of vehicle thermal management system

Abstract

A vehicle thermal management system is provided that includes an integrated thermal management (ITM) valve having a coolant outlet flow path that is connected to each of heat exchangers, which include one or more among a coolant inlet connected to an engine coolant outlet of an engine and into which coolant flows, a heater core, an EGR cooler, an oil warmer, and an ATF warmer, and a radiator and through which the coolant is distributed. A water pump is disposed at the front end of an engine coolant inlet of the engine and a coolant branch flow path is branched at the front end of the engine coolant inlet to be connected to any one of the heat exchangers.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority to Korean Patent Application No. 10-2020-0010389, filed on Jan. 29, 2020, which is incorporated herein by reference in its entirety.BACKGROUNDField of the Disclosure[0002]The present disclosure relates to a vehicle thermal management system, and more particularly, to a vehicle thermal management system, which saves costs while reducing the size of an integrated thermal management valve configured to optimize a cooling circuit under a coolant distribution control for the cooling circuit to which an exhaust heat recovery system and a heat exchanger are connected.Description of Related Art[0003]Generally, a vehicle thermal management system (hereinafter, referred to as VTMS) applies a coolant integrated thermal management valve (hereinafter, referred to as an Integrated Thermal Management Valve) to a cooling circuit control for distributing high temperature engine coolant capable of simultaneously satisfying h...

AI Technical Summary

Benefits of technology

The present disclosure provides a vehicle thermal management system that uses a 2-port type integrated thermal management valve and a cooling circuit control method. This system reduces the size of the valve, lowers the unit price of the valve, and improves the price competitiveness while enhancing the mountability of the vehicle and maintaining the heat exchange performance and effect between the connected systems. The cooling circuit control method reduces the number of ports in the cooling circuit, further optimizes the cooling circuit configuration, and maintains the heat exchange performance and effect between the connected systems. It also enhances the mountability of the vehicle, improves price competitiveness, and reduces the unit price of the valve.

Problems solved by technology

However, the 4-port type integrated thermal management valve has disadvantages in that the size of the cooling circuit of the VTMS is too large for the optimization in terms of the size and the costs thereof is expensive for generalizing the VTMS in terms of the costs.

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